Explicitly exit process for CI

.github/workflows/cli_tests.yml

@@ -36,3 +36,6 @@ jobs:
 
       - name: Run tests
         run: npm test
+        env:
+          NPM_CONFIG_YES: true
+          CI: true

cli/src/index.ts

@@ -287,6 +287,8 @@ async function main(): Promise<void> {
   try {
     const args = parseArgs();
     await callMethod(args);
+    // Explicitly exit to ensure process terminates in CI
+    process.exit(0);
   } catch (error) {
     handleError(error);
   }